United Kingdom of Great Britain and Northern Ireland vs lollipop lady

United Kingdom of Great Britain and Northern Ireland and lollipop lady both are nouns.

Word	Noun	Adjective	Verb	Adverb
United Kingdom of Great Britain and Northern Ireland	Yes	No	No	No
lollipop lady	Yes	No	No	No

United Kingdom of Great Britain and Northern Ireland (noun)	lollipop lady (noun)
a monarchy in northwestern Europe occupying most of the British Isles; divided into England and Scotland and Wales and Northern Ireland; `Great Britain' is often used loosely to refer to the United Kingdom	a woman hired to help children cross a road safely near a school